1111111001222 has 32 divisors (see below), whose sum is σ = 1759457894400. Its totient is φ = 525572892000.

The previous prime is 1111111001207. The next prime is 1111111001227. The reversal of 1111111001222 is 2221001111111.

It is a junction number, because it is equal to n+sod(n) for n = 1111111001197 and 1111111001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111111001227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628322 + ... + 1617717.

It is an arithmetic number, because the mean of its divisors is an integer number (54983059200).

Almost surely, 2^{1111111001222} is an apocalyptic number.

1111111001222 is a deficient number, since it is larger than the sum of its proper divisors (648346893178).

1111111001222 is a wasteful number, since it uses less digits than its factorization.

1111111001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246252.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111111001222 its reverse (2221001111111), we get a palindrome (3332112112333).

The spelling of 1111111001222 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one thousand, two hundred twenty-two".